54113989 has 2 divisors, whose sum is σ = 54113990. Its totient is φ = 54113988.

The previous prime is 54113981. The next prime is 54113993. The reversal of 54113989 is 98931145.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31169889 + 22944100 = 5583^2 + 4790^2 .

It is a cyclic number.

It is not a de Polignac number, because 54113989 - 2³ = 54113981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54113981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27056994 + 27056995.

It is an arithmetic number, because the mean of its divisors is an integer number (27056995).

Almost surely, 2^54113989 is an apocalyptic number.

It is an amenable number.

54113989 is a deficient number, since it is larger than the sum of its proper divisors (1).

54113989 is an equidigital number, since it uses as much as digits as its factorization.

54113989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 54113989 is about 7356.2211086943. The cubic root of 54113989 is about 378.2420857180.

The spelling of 54113989 in words is "fifty-four million, one hundred thirteen thousand, nine hundred eighty-nine".